/Engine/Plugins/Runtime/MeshModelingToolset/Source/MeshModelingTools/Public/EditMeshPolygonsTool.h
Emit an undoable change to CurrentMesh and update related structures (preview, spatial, etc)
void EmitCurrentMeshChangeAndUpdate ( const [FText](API\Runtime\Core\Internationalization\FText) & TransactionLabel, [TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [UE::Geometry::FDynamicMeshChange](API\Runtime\GeometryCore\DynamicMesh\FDynamicMeshChange) > MeshChangeIn, const [UE::Geometry::FGroupTopologySelection](API\Plugins\DynamicMesh\FGroupTopologySelection) & OutputSelection )